Packing for valve-stems



No. 6II,386. Patented Ss t 27 y J. H. MAunEn. p' ma PACKING Fon vALvEsTEms.

(Applicatian 'med nec. s, 1897.)

(No Model.)

lllllllIl-I in the upper Nifrnn STATES ArnN'r rricr.

THIRDS TO WILSON E. SOI-IMICK OF SAME PLACE, AND GEORGE H.

'GERBEI OF POTTSVILLE, PENNSYLVANIA.

PACKING FOR VALVESTEMS.

SPECIFICATION forming part of Letters Patent No. 611,386, datedSeptember 27, 1898. Application filed December 3| 1897. Serial No.660,664. (No model.) l

To all whom t may concern:

Beit known that I, JAMES H. MAURER, a citizen of the United States,residing at Hamburg, in the county of Berks and State of Pennsylvania,have invented certain new and useful Improvements in Packing forValve-Stems; andI do hereby declare the following to be a full, clear,and'exact description of the invention, such as will enable others.skilled in the art to which it appertains to make and use the same.

My invention relates to packing for valvestems, is designed to dispensewith the stuffing-boxes and glands generally used to prevent leaking offluids or liquids, and consists in certain improvements -inconstruction, which will be fully disclosed in the followingspecification and claims,

In the accompanying drawings, which form part of this specification,Figure 1 represents a side elevation of a valve-case; Fig. 2, a verticalsection ofthe same; Fig. 3, a transverse section of the valve-stem andpacking on line 3 3, Fig. 2; Fig. 4, a like view on line 4 4; Fig. 5, avertical section, partly in elevation; Fig. 6, a transverse section ofthe valve-stem Fig. 7', a vertical section of a modified construction ofthe valve-stem, and Fig. 8 aplan view of the lower end of the same.Reference being had to the drawings and the letters thereon, A indicatesa valve-case, B the valve, and C the hand1e,which is secured to thevalve-stem in the usual manner, and all of which may be of any approvedform, as they constitute no part of myinvention. The valve shown is ofthe type known to the trade as radiator-valves and is of the turningplugvariety. The valve-stem is cylindrical at a. and, non-cylindrical at band at its lower end is bent at c at a right angle to the body of thestem, and the part c engages a slot d end of the valve B, as shown inFigs. 2 and 5, to turn the valve inthe valvecase to regulate the now ofliquid or fluid.

D indicates the packing, which is made of rubber and may be molded onthe valve-stem and secured to the non-cylindrical portion b, but is freeto turn on the part a, and at the lower end of the cylindrical portion hof the packing which surrounds the'valve-stem is a flange e, which restsupon the upper end f of the valvefcase and packs the joint between thevalve-case and the cap g, while the escape of liquid or fluid around thevalve-stem is prevented by its surrounding packing h.

The packing surrounding the valve-stem is inclosed by a casing E,extending fromthe cap g to the under side of the handle C, and theflange e is protected against excessive heat by a disk i, of asbestos orother non-conductor of heat, applied to the inner surface of the liangee and. also secured in position by the cap g of the valve-case.

The upper portion of the packing surroundl ing the valve-stem isprevented from turning thereon by the non-cylindrical part b of thestem, while the lower portion is free, and in l turning the valve thisportion of the packing is twisted, as indicated at lain Fig. 5, whilethe flange e and the upper portion of the packing remain stationary.

It is obvious that other irregular forms may be substituted for the flatportion b of the valve stem or that the stem may be cylindricalthroughout its length, as shown at Z in Fig. 7, a head m above it, tothe lower end of which head and to the upper part of the cylindricalportion l adjacent to the head the tubular portion k of the packing issecured by sweating or lby any other means to cause the packing to turnwith the stem at its upper end, while the remaining portion is free totwist in turning the valve-stein, thereby permitting the packing to bemoldedupon a metallic core otherA than the valve-stem in the usual wayof molding rubber articles andl put on the market as an article ofmanufacture to be supplied to the trade.

On the lower end of this valve stem is a plate n, having projections oo, Fig. 8, to engage the valve in place of the bent part c of thevalve-stem.

Having thus fully described my invention,

' what I claim is 1. A` valve-stem provided with a flexible packingsurrounding the stem, part of which is secured to the stem and part freeand a flange at its inner end to engage the valvecase. y

2. A Valve-stem provided with a iiexible ICO packing surrounding thestem, secured to a part thereof, extending outside the body of the valveand having a flange at its inner end to engage the valve-case.

3. A valve-stem provided with a iiexible packing, part being secured tothe stem and having a flange at its inner end to engage the valve-case',and a heat-protector on the inner surface of the flange.

4. A valve-stem having a portion thereof cylindrical and a portionnon-cylindrical, in combination with a iiexible packing surrounding saidstem and provided with a iiange at its inner end to engage thevalve-case.

5. A. valve-stem having. a portion thereof cylindrical anda portionnon-cylindrical, in'

combination with a iiexible packing secured to the non-cylindricalportion and free on the cylindrical portion and having a ange at itsinner end to engage the valve-case.

6. A valve-stem provided with a packing surrounding the stein, securedto a part thereof and having a ange at its inner end to engage thevalve-case and the stem extending through the flange and constructed toengage with a valve.

7. A valve-stem provided With flat and cylindrical portions, and aright-angled extension at one end, in combination with a packingsurrounding the stem and having a flange at its inner end to engage thevalve-case.

8. A valve-stem. provided with a packing surrounding the stem, partbeing secured thereto and having a flange at its inner end to engage thevalve-case and a supplemental casing extending from the body of thevalve and inclosing said packing.

9. An article of manufacture, a packing for valve-stems consisting of anelongated cylindrical portion to surround the stem and a Iiange at itsinner end to pack the joint be tween the valve-casing and its cap.

In testimony whereof I affix my signature in presence of two witnesses.

- JAMES H. MAURER. Witnesses:

G. H. GERBER, H. C. WILSON.

